change rotation units to angles

Use angle units, such that a complete revolution corresponds
to 2 pi.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/grail-types.h b/include/grail-types.h
index 9f7160d..83a653c 100644
--- a/include/grail-types.h
+++ b/include/grail-types.h
@@ -64,9 +64,9 @@
 #define GRAIL_PROP_PINCH_X2     5       /* bounding box x2 */
 #define GRAIL_PROP_PINCH_Y2     6       /* bounding box y2 */
 
-#define GRAIL_PROP_ROTATE_DA    0       /* arc delta */
-#define GRAIL_PROP_ROTATE_VA    1       /* arc velocity */
-#define GRAIL_PROP_ROTATE_A     2       /* arc */
+#define GRAIL_PROP_ROTATE_DA    0       /* angle delta */
+#define GRAIL_PROP_ROTATE_VA    1       /* angular velocity */
+#define GRAIL_PROP_ROTATE_A     2       /* angle */
 
 #define GRAIL_PROP_TAP_DT       0       /* tap time (ms) */
 #define GRAIL_PROP_TAP_X        1       /* horizontal position */